This updated second edition examines the gastrointestinal tract in relation to both immunocompetent and immunocompromised hosts. Written by specialists in infectious diseases and gastroenterology, this edition features discussion on the many infections of the gastrointestinal tract faced by adult and pediatric populations. The text traces the historical and epidemiological aspects of these disorders and provides detailed discussions on diagnosis, treatment, prevention and control, and should be of interest to the infectious disease specialist, gastroenterologist, primary care provider, internist, paediatrician and surgeon.